此模块实现了对数据库数据以透视表、统计表、图片形式显示给用户-This module implements the pivot table data to the database, tables, pictures, displayed to the user

快排，将小于枢轴的元素移到前面，将大于枢轴的元素移到后面-Fast scheduling, will be less than the pivot element to the front, will be greater than the pivot element to the back of